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參數(shù)資料
| 型號： | LC74770M |
| 元件分類： | 畫面疊加 |
| 英文描述： | ON-SCREEN DISPLAY IC, PDSO24 |
| 封裝： | MFP-24 |
| 文件頁數(shù)： | 4/11頁 |
| 文件大?。?/td> | 252K |
| 代理商： | LC74770M |
Specifications
Absolute Maximum Ratings at Ta = 25°C
Allowable Operating Ranges at Ta = –30 to +70°C
Electrical Characteristics at Ta = –30 to +70°C, VDD = 5 V unless otherwise specified.
Timing Characteristics at Ta = –30 to +70°C, VDD = 5 ± 0.5 V
No. 4248-2/11
LC74770M
Parameter
Symbol
Conditions
Ratings
Unit
Maximum supply voltage
VDD max
VDD
VSS – 0.3 to VSS + 7.0
V
Maximum input voltage
VIN max
All input pins
VSS – 0.3 to VDD + 0.3
V
Maximum output voltage
VOUT max
BLK1, BLK2, CHA1, CHA2, P0 to P3, CKOUT
VSS – 0.3 to VDD + 0.3
V
Allowable power dissipation
Pd max
300
mW
Operating temperature
Topr
–30 to +70
°C
Storage temperature
Tstg
–40 to +125
°C
Parameter
Symbol
Conditions
min
typ
max
Unit
Supply voltage
VDD
4.5
5.0
5.5
V
Input high-level voltage
VIH
RST, CS, SIN, SCLK, HSYNC, VSYNC
0.8 VDD
VDD + 0.3
V
Input low-level voltage
VIL
RST, CS, SIN, SCLK, HSYNC, VSYNC
VSS – 0.3
0.2 VDD
V
Oscillator frequency
fOSC
OSCIN and OSCOUT oscillator pins
5
7
10
MHz
Parameter
Symbol
Conditions
min
typ
max
Unit
Output high-level voltage
VOH
BLK1, BLK2, CHA1, CHA2, P0 to P3: VDD = 5.0 V,
4.5
V
IOH = –1.0 mA
Output low-level voltage
VOL
BLK1, BLK2, CHA1, CHA2, P0 to P3: VDD = 5.0 V,
0.5
V
IOL = 1.0 mA
Input current
IIH
RST, CS, SIN, SCLK, HSYNC, VSYNC: VIN = VDD
1A
IIL
HSYNC, VSYNC: VIN = VSS
–1
A
Operating current drain
IDD
VDD: all outputs open, LC = 7 MHz
10
mA
Parameter
Symbol
Conditions
min
typ
max
Unit
Minimum input pulse width
tW (SCLK)
SCLK
200
ns
tW (CS)
CS (the period that CS is high)
1
s
Data setup time
tSU (CS)
CS
200
ns
tSU (SIN)
SIN
200
ns
Data hold time
th (CS)
CS
2
s
th (SIN)
SIN
200
ns
Single word write time
tword
The time to write 8 bits of data
4.2
s
twt
The time to write RAM data
1
s
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